3.6
CVSSv2

CVE-2017-13720

Published: 11/10/2017 Updated: 13/11/2017
CVSS v2 Base Score: 3.6 | Impact Score: 4.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 7.1 | Impact Score: 5.2 | Exploitability Score: 1.8
VMScore: 320
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:P

Vulnerability Summary

In the PatternMatch function in fontfile/fontdir.c in libXfont up to and including 1.5.2 and 2.x prior to 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '\0' characters are incorrectly skipped in situations involving ? characters.

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x.org libxfont 2.0.0

x.org libxfont 2.0.1

x.org libxfont

Vendor Advisories

Several security issues were fixed in libXfont ...
Two vulnerabilities were found in libXfont, the X11 font rasterisation library, which could result in denial of service or memory disclosure For the oldstable distribution (jessie), these problems have been fixed in version 1:151-1+deb8u1 For the stable distribution (stretch), these problems have been fixed in version 1:201-3+deb9u1 We recom ...
In the PatternMatch function in fontfile/fontdirc in libXfont through 152 and 2x before 202, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service) This occurs because '\0' characters are incorrectly skipped in situations invol ...